Collosion detection for QGraphicsPixmapItem objects. how?

[anda_skoa]

I guess because Background is a subclass of QGraphicsPixmapItem, the collidingItems() doesn't work for it.

Not sure why you mean it wouldn't work for pixmap items, they do have a shape.

and can qgraphicsitem_cast be used for casting QGraphicPixmapItem or is it only for QGraphicsItem ?

A QGraphicsPixmapItem is a QGraphicsItem. So yes.

Cheers,
_